create_drawing opened linked IFCs raw, so a moved link serialized at
its original coordinates and its elements fell outside the drawing.
The stored link transformation is the model-space delta, so it is now
baked into the linework iterator via the model-offset/model-rotation
settings (Trans @ Rot composition matches the rigid matrix
decomposition; the plan-view Z offset adds onto the translation).
The serialization loop also collapsed same-file links into a dict
keyed by filepath, dropping all but the last link. It now iterates one
entry per link and intersects each link's drawing elements with its
selector query, so drawings show what each link displays in the
viewport. Adds tool.Project.get_link_transformation_matrix as the
shared accessor for the stored 4x4.
Verified headless: window link moved +5m appears offset by exactly
5m x scale; unmoved door link at its native position; both present.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
get_linked_models_documents keyed documents by the stored Location, so
linking the same file first with a relative path and then an absolute
one (or vice versa) created a duplicate IfcDocumentInformation. Both
the keys and the LinkIfc lookup now normalize through resolve_uri.
Also record the PR #8242 review round decisions in the dev note.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Living design note per the docs/dev-notes convention: problem, key
facts (library-per-path reuse, SKIP_SAVE last-used-property retention,
IfcDocumentReference conventions, link matrix math), per-feature design
decisions, commit map, and open test items.
Generated with the assistance of an AI coding tool.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Ryan Schultz